Natural gamma radiation level detection in agriculture soil after Aila disaster and comparison with deep soil gamma activity in a specific area of Sundarban region, Satkhira, Banglsdesh

Background: the present work was conducted on some soil samples collectedfrom shamnagar upazila of satkhira district of south-west part of worldlargest mangrove forest sundarban rezion, bangladesh which were affectedby natural disaster cyclone aila. materials and methods: the soil sampleswere analyzed to determine terrestrial γ-ray activity using hpge γ-rayspectrometry. the measurements conducted in the current study showedthat primordial radionuclides namely the 238u and 232th and 40k are containedin all the soil samples. results and discussion: the obtained results of theaverage activity concentrations of 238u, 232th and 40k were found to be withinthe range of the world average of 17-60, 11-64, 140-850 bq.kg-1 reported byunscear. the radiation dose is below the permissible limit of 1msvy-1recommended by iaea (2007). no peak of 137cs from the decay activity wasfound in the spectrum in the present work. conclusion: the present work willbe useful in providing environmental monitoring data base of those particularareas.